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A Study on Thermal Analytical Model for a Dry Dual Clutch
Hao Liu(류하오),J. C. Lee(이재천),Y. J. Noh(노유정),J. H. Cho(조종환),H. R. Lee(이희락),J. E. Koh(고재욱),J. W. Kang(강지우) 유공압건설기계학회 2015 드라이브·컨트롤 Vol.12 No.1
The stability of friction characteristics and thermal management for a dry type dual clutch transmission (DCT) are inferior to those of a wet clutch. Too high temperature resulting from frequent engagement of DCT speeds up degradation or serious wear of the pressure plate or burning of the clutch disk lining. Even though it is significantly important to estimate the temperature of a dry double clutch (DDC) in real-time, few meaningful study of the thermal model of DDC has been known yet. This study presented a thermal analytical model of lumped parameters for a DDC by analyzing its each component firstly. Then a series of experimental test was carried out on the test bench with a patented temperature telemetry system to validate the proposed thermal model. The thermal model, whose optimal parameter values were found by optimization algorithm, was also simulated on the experimental test conditions. The simulation results of DDC temperature show consistency with the experiment, which validates the proposed thermal model of DDC.
류하오(Hao Liu),이재천(J. C. Lee),조종환(J. H. Cho),허만대(M. D. Hur) 유공압건설기계학회 2012 유공압건설기계학회 학술대회논문집 Vol.2012 No.6
Due to high efficiency and easy control convenience of dual clutch transmission (DCT), nowadays DCT is increasingly applied on passenger vehicles. As a main component of DCT, dry dual clutch (DDC) should smoothly transmit power to the odd or even gear set. Frequent engagement and disengagement lead temperature increasing of the contact facing of the DDC. Too high temperature would speed up degradation or serious wear of the pressure plate and burning of the disk. It is significant to know the thermal model of the DDC during the period of development and design. By analyzing each component of the DDC, a lumped thermal model is proposed in the paper. Base the thermal model, simulation by using simulink is performed according to the experimental condition. The simulation results show consistency with the experiment, which validates the proposed thermal model of the DDC.